BTL is a bridge connected audio power amplifier. It can at 5V supply voltage to a 3Ω load with THD less than 10% of the average output power of 3W. In shutdown mode current is typically 0.6μA. It is designed to provide high-power, high-fidelity audio output and specially designed. It requires only a small number of external components, and can work in low Voltage conditions (2.0V-5.5V). It does not need coupling capacitors, bootstrap capacitors or snubber networks, so it is very suitable for small volume and low Low-power system weight.